| Acronym | Meaning |
 | NASM | National Air And Space Museum |
| OAS | Organization Of American States |
| OPM | Office Of Personnel Management |
| ORHP | Office Of Rural Health Policy |
| RA | Reserve Affairs |
| DOT | Department Of Transportation |
| NIFC | National Interagency Fire Center |
| FAS | Foreign Agricultural Service |
| AMTRAK | National Railroad Passenger Corporation |
| GNMA | Government National Mortgage Association |
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